I started birth control pills for the first time ever yesterday and last night my boyfriend and I had unprotected sex. My period is suppose to start in 4 days. Do I need to take Plan B to prevent pregnancy or will I be alright if I keep taking my pills?
Can I get pregnant after having sex the same day I started birth control for the first time ever?
Question posted by Sfosterloyd on 17 Jan 2015
Last updated on 6 March 2018 by ddcmod3
4 Answers
Official Answer
Medically reviewed by Drugs.com. Last updated on Sep 22, 2020.
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DrDavidB
18 Jan 2015
You have a %35 chance of becoming pregnant. It usually takes 7 days for the Pill to take effect. You should definitely use Plan B. And you should have known better not to have sex after taking only one Pill.
Let us know if/when you get your period.
Sfosterloyd
18 Jan 2015
I got my period today. Do I still need to take plan b?
DrDavidB
19 Jan 2015
That's good news! No, I don't think you have to worry about Plan B, because your period has arrived!
Now, learn a lesson from this, and make sure you take the right precautions from now on. I am happy for you!
Tpblue45
13 Aug 2017
What if you have in protected sex 5 hours after should took the last pill of her first week
Kate_marin
17 Jan 2015
keep taking your pills every day and GO GET PLAN B. Birth control is not effective until you've gone though a whole pack.
kaismama
17 Jan 2015
You need plan B, you aren't protected for the first 7 days. I take it you didn't read the directions. You're supposed to start the pill the day your period starts. You probably won't have a period now, when it was due, particularly with taking plan b too. Your next period will be late. But keep taking your pills, and it will straighten out. The plan B effects it and makes it late.
Sfosterloyd
18 Jan 2015
I got my period today. Do I still need plan b?
Related topics
plan b one-step, birth control, pregnancy, sex, period, unprotected sex, birth control pills, pill
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